Agricultural implement.



L. FONNESBECK.

AGRICULTURAL IMPLEMENT.

APPLlCATlON FILED JULY 11. 1916.

, Patented May 8 1917.

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LEON FONNESBEOK, 0F LOGAN, UTAH.

AGRICULTURAL IMPLEMENT.

Specification of Letters Patent.

Patented May 8, 1917.

Original application filed April 6, 1916, Serial No. 89,415. Divided andthis application filed July 11, 1918. Serial No. 108,676.

T 0 all whom it may concern Be it known that I, LEON FoNNnsBnox, acitizen of the United States, residing at Logan, in the county of Cacheand State of Utah, have invented certain new and useful Improvements inAgricultural implements, of which the following is a specification.

This application is a division of an application for patent on motorplows, Serial No. 89315, filed by me April 6, 1916.

The present invention relates particularly to the ground-engagingimplement or rotary tool and seeks to provide a novel construction ofrotary plow or tool whereby the earth-engaging members will be securelysupported.

The invention is illustrated in the accompanying drawings, in which,

Figure l is a view showing a portion of a cylinder in section and a plowshare secured thereto in elevation;

Fig. 2 is a section on the line 22 of Fig. 1;

Fig. 3 is a detail perspective view of the attaching plate or cap on thetool;

Fig. 4e is a detail perspective view of the latch or locking plate.

in the drawings, 63 designates a portion of a cylinder or drum which isreinforced by internal annular bands 6% and carried by spokes 65 upon acentral shaft or axle. Motion is imparted to this drum or cylinder sothat it rotates in the same direction as the ground wheels of themachine upon which it is mounted but at a higher speed. Theground-engaging tools or members 66, in the present instance, are shownas of the same form as the ordinary turning plow now in common use but,of course, are much smaller and are provided in such numbers as toapproximately cover the entire surface of the drum 63. It is to beunderstood, however, that other forms of implements may be used and thatthe points 67 may be of any desired shape. The standard or shank 68 ofthe ground-engaging member is substantially triangular at its attachingend and is formed or provided with a cap or attaching plate 69 ofsimilar form which is dished slightly to conform to the periphery of thedrum 63 to which it is secured. The drum is provided with slots oropenings 70 through its periphery to receive the attaching devices bywhich the plate 69 is secured and these slots are so arranged that theplows will be in staggered relation around the drum and, consequently,in operation will thoroughly turn over and pul- .Z f"\ 1 J! L verize thesoil. ihe edge OJ. the cap which is the base of the triangle is disposedat the rear, relative to the direction of travel of the machine, whenthe attached plow is in its lowest position. At the corners of thisbasal edge, the cap is provided with ofiset lugs or hook-likeprojections 71 which are inserted through spaced slots 70 in the drumwhile the plow lies close to the periphery of the drum after which theplow is swung to a position approximately radial to the drum therebycausing the retaining lugs or projections 71 to engage the inner surfaceof the drum, as shown in Fig. 1. At its apex, the cap is provided with aslot 7 2 which is adapted to register with a slot 70 in the drum andreceive a locking lever or latch 73 which is inserted through said slotand the registering slot in the drum from the interior of the drum andis then swung over and beyond the cap to be fastened to the drum. Thislatching lever is constructed with an arched portion 74 whereby thelever may clear the apex of the cap and lie close against the surface ofthe drum. From the inner end of the arched portion, a neck- 75 extendsto carry a head or cross bar 76, the length of which is greater than thewidth of the lever so that it may project over the slot through whichthe lever is inserted and engage the inner surface of the drum toprevent withdrawal of the latch. The dimensions of the neck 75 should besuch that, when the latch is in place, it may be rocked about the head76 to engage the slot 72 and assume the position shown in Fig. 1 andloss of the latch will be prevented, when the plow is removed, by theshoulders at the outer end of the neck engaging the outer surface of thedrum and the head engaging the inner surface thereof. The latch isinserted through the slot 70 until the neck is wholly within the slotwhereupon the latch is rotated through an arc of ninety degrees aboutits own longitudinal axis thereby causing the shoulders and the head toproject beyond the sides of the slot. The outer end of the lever fitsagainst the drum between lugs or ears 77 thereon and a pin or bolt 78 isinserted through said lugs or ears over the end of the latch to retainthe same in the locking position.

Having thus described the invention, what is claimed as new is:

1. In a rotary plow, the combination or a drum provided with slotsdisposed in trian gular relation, a plow, a triangular cap plate at theupper end of the plow provided at one edge with projections passingthrough two of the slots in the drum and engaging the inner surface ofthe same, the cap plate being provided at the corner remote from saidprojections with a slot registering with a slot in the drum, a latchinserted through said registering slots, said latch having a neck topass through said slots and a head at the inner end of said neck to bearagainst the inner side of the drum. and permit rocking of the latch, thelatch being further con.- structed with an arched portion to clear theedge of the cap plate and permit its extremity to lie close against thedrum, projections on the drum at the sides of the latch, and a securingdevice inserted through said projections and passing over the latch.

2. in a rotary plow, the combination of. a drum, a plow, a cap plate onsaid plow having means at one end to enter the drum and engage the innerface thereof, and means at the opposite end of the cap plate for lockingthe same to the drum.

3. In a rotary plow, the combination of a drum, a plow, a cap plate theupper end of the plow having a slot at one end, proj e tions at theopposite end of the cap plate extending into the drum and engaging theinner side of the same, a latch inserted outwardly through the drum andthe slot in the cap plate and turned over against the drum, and aretaining device secured upon the drum and extending over the end of thelatch.

In testimony whereof I al'liX my signature.

LEON FONNESBEOK. [Ls] Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents, Washington, D. G.

